Corrosion protection of magnesium alloy ZM21 by polyaniline-blended coatings

Sathiyanarayanan, S.; Azim, S. Syed; Venkatachari, G.

doi:10.1007/s11998-008-9097-5

Cited by 16 publications

(5 citation statements)

References 39 publications

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“…However, as an object of the current research, there is not actual application procedure available for magnesium alloys. (6) Organic coating treatment [92][93][94][95][96][97][98]. In literature [94] authors describe the utilization of thin film deposited in Plasmas fed with hexamethyldisiloxane-oxygen (HMDSO-O 2 ) mixture for the corrosion protection of Mg alloys.…”

Section: Surface Conversion Coatingsmentioning

confidence: 99%

A Review of Magnesium/Magnesium Alloys Corrosion and its Protection

Guo¹

2010

Recent Pat. Corros. Sci.

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A review is provided about the current research on magnesium/magnesium alloys corrosion in the industry. Except for reviewing the kinds of corrosion on galvanic corrosion, stress corrosion, and corrosion fatigue, its corresponding mechanisms are also explained, such as the influence of metallurgical factors, and environmental factors. Furthermore, the protection of magnesium/magnesium alloys corrosion is presented, for instance, surface treatment/modification, coating and so on. Also, because the continuing challenges associated with the use of magnesium alloys, more considerations about future applications and research directions are given according to the properties improvement of magnesium alloys for the eco-friendly requirements.

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Section: Surface Conversion Coatingsmentioning

confidence: 99%

A Review of Magnesium/Magnesium Alloys Corrosion and its Protection

Guo¹

2010

Recent Pat. Corros. Sci.

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“…There are several new technologies now under consideration for aluminum alloys protection including conductive polymers as primers without Cr-based metal pre-treatments (Bierwagen 2001). For magnesium and its alloys, the conducting polyanilineblended organic coatings have been found to protect the pinholes due to the passivation ability of the conductive polymer (Sathiyanarayanan et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Structural and Morphological Characteristics of Polyaniline Synthesized in Pilot Scale

Mazzeu

Faria

Cardoso

et al. 2017

J.Aerosp. Technol. Manag.

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AbstrAct:Polyanilines have many applications in Aerospace, especially in their doped form. Studies on their synthesis in a pilot scale can contribute to obtain products with desirable characteristics for such applications. The present study reports the chemical oxidative synthesis of polyaniline in pilot scale and different reaction times in order to determine if there are variations in the polyaniline structure, morphology and conductivity due to these synthesis conditions. It is very common to analyze these data for polymers obtained through bench scale. However, several parameters change the properties of final material in major scales, such as thermal, mechanic and diffusive variables. Therefore, the reaction time is the only variable into the 9 syntheses carried out, and polyaniline is obtained in a doped form, being dedoped with ammonium hydroxide and redoped with dodecylbenzenesulphonic acid. The doped and redoped samples were characterized by their molecular structure, thermal behavior, crystallinity and morphology. The electrical conductivity of redoped samples was determined. Some differences in the structure and morphology of doped and dedoped forms, identifying the doping structures, were reported. This paper aims to present the relationship between changes on structure and morphology of doped and undoped polyaniline obtained by the mentioned experiments. Furthermore, some addicts on conductivity are carried out. It was possible to contribute in order to obtain a more conductive polyaniline in pilot scale.

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“…The direct electrochemical deposition of CPC on Mg has not yet been achieved, except one report that used a very severe basic condition [26]. Physical painting of blends containing conducting polymers have been used [27, 28], but the uniformity and thickness of the coatings are difficult to control. Here, we report the successful electrodeposition of CPCs, mainly poly(3,4-ethylenedioxythiophene) (PEDOT) on pure Mg in ionic liquid (IL).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical deposition of conducting polymer coatings on magnesium surfaces in ionic liquid

Liu

Cui

2011

Acta Biomaterialia

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A conducting polymer based smart coating for magnesium (Mg) implants that can both improve the corrosion resistance of Mg and release drug in a controllable way is reported. As the ionic liquid is a highly conductive and stable solvent with a very wide electrochemical window, the conducting polymer coatings can be directly electrodeposited on the active metal Mg in ionic liquid at mild conditions, and Mg is considerably stable during the electrodeposition. The electrodeposited Poly(3,4-ethylenedioxythiophene) (PEDOT) coatings on Mg are uniform and can significantly improve the corrosion resistance of Mg. In addition, the PEDOT coatings can load the anti-inflammatory drug dexamethasone during the electrodeposition which can be subsequently released upon electric stimulation.

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Corrosion protection of magnesium alloy ZM21 by polyaniline-blended coatings

Cited by 16 publications

References 39 publications

A Review of Magnesium/Magnesium Alloys Corrosion and its Protection

A Review of Magnesium/Magnesium Alloys Corrosion and its Protection

Structural and Morphological Characteristics of Polyaniline Synthesized in Pilot Scale

Electrochemical deposition of conducting polymer coatings on magnesium surfaces in ionic liquid

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